Article ID: 113370, created on Feb 25, 2012, last review on May 11, 2014

  • Applies to:
  • Plesk 10.x for Windows
  • Plesk 9.5 for Windows


The Panel is down and is showing "500 - Internal server error."


Some of the files in the %plesk_dir%\admin\plib and %plesk_dir%\admin\htdocs folders are of different versions or do not exist.


These folders are to be compared with the ones on the test labs or working sets of the same version/build. Files are to be restored or replaced.

Note: If this solution did not help you, make sure you check out the main article: #114882:[HUB] 500 - Internal Server Error

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